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University of Padua IMAGE Department |
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Landfill Siting |
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Physical parameters impacting on the suitability of siting Geological: both bedrock and overburden lithology, and geological structure. Hydrological/Hydrogeological: infiltration, percolation, pathways of rainwater Subsurface hydrogeological features, i.e. aquifers; Surface runoff characteristics. Topographic: height above sea level; surface slopes. Ecological: effect on plant and animal habitats, biodiversity. Climatic: local microclimate, rainfall, wind velocity. Geotechnical: foundation characteristics, side slope stability relations. Criteria on a scale of hierarchies, with assigned weightings, must be established for each parameter in order to objectively rank the different options. Siting criteria Geology and hydrogeology Topography Ecology (fauna, flora, biodiversity, etc.) Population Land use Economy In general, they deal with site suitability: the determination of the fitness of a given area for a defined use through appropriate analyses. However, they can also deal with potentialities: any positive expectation related to the choice of the specific site Site selection procedure I Step: |
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II Step: |
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Site selection methodology |
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A - Search of suitable sites |
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Identification of target areas by using data basis on impacting parameters Identification of suitable individual sites, utilising output from the previous step, and involving more detailed local information and site-specific analysis Two main approaches Geographic Information System (GIS) Multi Criteria Decision Models (MCDM) |
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B - Field tests |
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Rigorous geological/ hydrogeological assessment of individual sites identified within the target areas a combination of site investigation and laboratory techniques |